Ein is a famed tracker and a headhunter who fights with an unorthodox brawling style. He is hired to capture Kenshiro, bur after a brief fight with Ken, he begins to respect him. Has a daughter he protects with his very life and is the reason why he earns money.      ~!He sacrifices his own life just to rescue Bat, Myu, Lin and Lui from a flooding cell. Kenshiro is given Ein&#039;s gloves by Asuka after his death in which he was seen wearing throughout the rest of the series.!~      - Wikipedia

One day, a wanderer appears out of the wasteland to bring justice to the guilty and hope to the people—a warrior named Ken, a man who bears seven scars upon his chest and holds the secret of a mysterious martial art known as Hokuto Shinken, the Divine Fist of the North Star!<br>
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(Source: Viz Media)

In the second series after Raoh has been defeated by Kenshiro a new rival appears. The Gentou Kouken warriors. Falco the successor of the Gentou Kouken takes orders from an evil ruler by the name of Jacko. He claims to be the man chosen by the Tentei and issues orders to his subordinates to capture anyone living in order to build up his Imperial Capital. Kenshiro once again rises out of the shadows and puts an end to his tyrannical ways. Amidst the mayhem Lynn gets captured and gets taken to the land of the Shura where only ruthless fighters exist. Now Kenshiro must pursue the captor and defeat the 3 Rasho of the land in order to escape with his life and with Lynn.